478118873 has 2 divisors, whose sum is σ = 478118874. Its totient is φ = 478118872.

The previous prime is 478118843. The next prime is 478118881. The reversal of 478118873 is 378811874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 427538329 + 50580544 = 20677^2 + 7112^2 .

It is a cyclic number.

It is not a de Polignac number, because 478118873 - 2⁸ = 478118617 is a prime.

It is not a weakly prime, because it can be changed into another prime (478118833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239059436 + 239059437.

It is an arithmetic number, because the mean of its divisors is an integer number (239059437).

Almost surely, 2^478118873 is an apocalyptic number.

It is an amenable number.

478118873 is a deficient number, since it is larger than the sum of its proper divisors (1).

478118873 is an equidigital number, since it uses as much as digits as its factorization.

478118873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 301056, while the sum is 47.

The square root of 478118873 is about 21865.9295023102. The cubic root of 478118873 is about 781.9493609323.

The spelling of 478118873 in words is "four hundred seventy-eight million, one hundred eighteen thousand, eight hundred seventy-three".